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Step * of Lemma r2-line-sep_wf

∀l,m:r2-line.  (r2-line-sep(l;m) ∈ ℙ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}l,m:r2-line.    (r2-line-sep(l;m)  \mmember{}  \mBbbP{})


By

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Latex:
ProveWfLemma

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